Stackable tray



FIG. 1 is a perspective view from behind of a stackable tray showing my new design, with area 13 further enlarged in FIG. 13;

FIG. 2 is a perspective front view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof;

FIG. 9 is a perspective view of a plurality of trays stacking onto one another;

FIG. 10 is a perspective view from behind of a second embodiment of a stackable tray with a degree of transparency;

FIG. 11 is a perspective front view thereof;

FIG. 12 is a perspective view of a plurality of transparent trays stacking onto on another; and,

FIG. 13 is an enlarged perspective view of area 13 from FIG. 1.

Broken lines illustrate environmental elements that form no part of the claimed design. 

CLAIM The ornamental design for a stackable tray, as shown and described. 